Marcos Maidana will compete in his second straight welterweight bout against Jesus Soto Karass on the undercard of a Showtime-televised main event featuring WBC junior middleweight titleholder Saul Alvarez.

Freddie Roach, Alex Ariza and Miguel Diaz have had a rocky relationship in the past, and one of the challenges of this Saturday night will be for the trio to set aside their differences and work together in Manny Pacquiao’s corner.

Eleven boxing insiders give their thoughts on Lamont Peterson’s and Andre Berto’s recent failed drug tests, which resulted in the cancellation of two high-profile rematches, and the sport’s challenge of properly screening for performance enhancing substances.

Philadelphia-based cruiserweight Steve Cunningham, who is promoted by a German company, is better known in Germany than he is in America. He will fight Yoan Pablo Hernandez in Germany on Saturday in a rematch with THE RING’s vacant title on the line.